Many things can be said about the Miami Heat's revamped roster, but "stale" won't be one of them.

With Wednesday's addition of undrafted free-agent guard Tyler Johnson, a move confirmed to the Sun Sentinel by a league source, the Heat now have 14 players on their roster -- seven newcomers and seven returning players.

Johnson, a 6-foot-4 guard out of Fresno State, surprised with his athleticism during summer leagues in both Orlando and Las Vegas. He averaged 12.8 points on .607 shooting in four appearances in the Orlando summer league and then 12.3 points on 52-percent shooting in six appearances in Las Vegas.

Johnson ended his collegiate career ranked No. 16 on Fresno State's all-time scoring list, a second-team All-Mountain West selection as a senior.